Beacon LED Flash notification 3.2 Full APK. Beacon - LED flash notifications for calls and SMS Notifications flash Beacon notifies you of incoming calls and SMS text messages through the issuance of short bursts of light through the rear camera flash. choose from six modes of notification 5 calls and SMS notification methods of notification Perfect for dark or noisy environments like the night, quiet environments such as meetings and offices, or if necessary to control the phone remotely for cargo, or for the hearing impaired.